Cooking-stove



(No Model.)

2 Sheets-Sheet; 1.

J. M. KILLIN.

COOKING STOVE.

Patented Nov. 15,1881.

:Iig 5 I!!!IfI/llflfllll/IIILVIII/Ila N. PETERS. F'hnlol lhcgmphcr.Washington. D. C.

(No Model.) 2 she ts-sneer 2.

J. M. KILLIN;

COOKING STOVE.

No. 249,636. Patented Nov. 15,1881.

U ITED STATES PATENT Trice.

JOHN M. KILLIN, OF PITTSBURG, PENNSYLVANIA.

COOKING-STOVE.

SPECIFICATION forming part of Letters Patent No. 249,636, dated November15, 1881,

Application filed September 20, 1881. (No model.)

To all whom it may concern Be it known that I, JOHN M. KILLIN, ofPittsburg, in the county ofAllegh eny and State of Pennsylvania, haveinvented certain new and useful Improvements in Cooking-Stoves; and I dohereby declare the following to be a full, clear, and exact descriptionof the same, reference beinghad to the accompanying drawings, formingpart of this specification, in which- Figure 1 is a longitudinal sedtionof a cooking-stove containing my improvements. Fig. 2 is a cross-sectionof the same; Fig. 3, a topplan view of the same with the fire-backremoved; Fig. 4, a perspective view of the firebackdetached,lookingfroin the rear 5 and Fig. 5, a sectional view of amodification, in which the air is admitted behind the fire-back from theash-pit.

Similar letters of reference in the several figures denote the sameparts.

My invention relates to improvements in cooking-stoves; and it consistsin certain novelties of construction, which I will now proceed todescribe.

In the drawings, A represents the frame .of the stove; B, the oven; 0,the flue above the oven; D,the flue belowthe oven; E, the grate; FF F,the parts composing the fire-back, and G the ash-pit.

The parts of the fire-back are made of metal, and are provided on theirrear sides with projections or studs f, also of metal, cast upon orattached to them, and located at such distances apart as to permit afree circulation of air. These projections of course absorb the heat ofthe body of the fire-back, but by presenting a large radiating-surfacethrow it 0E again rapidly into the air circulating between them.

In the particular embodiment of my invention shown in the drawings therear portion,F, of the fire-backis provided with a central lowerextension, f which projects down through an opening, 6, in the rearportion of the grate, and is surrounded on three sides by anair-inclosing flange, f Said extension also extends downin frontof andpartially closes the opening leading to the return-flue D under theoven, the remainder of said opening being covered by a damper, H, asshown in Fig. 1. The said rear part, F, at its ends is cut awaysomewhat, as shown at f f to form a passage-way for air from behind theend parts, F F, and it is preferably further provided with lugs f f,behind which the end parts F F are slipped and retained. The casingbehind the end parts, F F, is provided with openings a a, for theadmission of air behind said parts. When the stove is in operation theparts F F F, forming the fire-back, of course become highly heated, andtheir heat is in turn communicated to the projections f on their rearsides. nal air, however, rushing in behind the parts F F, passes betweenthe projections thereon, and thence in behind the part F, and throughbetween the projections thereon also. It thence passes down behind theextension f being prevented from escaping by the flanges f and into theflue below the oven. The air, in" its passage, while in a measurecooling the fireback itself, becomes highly heated, so that upon itsarrival in the return-flue under the oven it is in condition to heat thelatter in the most efficient manner.

Instead of taking the air through the openings a a in the sides of thestove-casing, it may be taken through openings in the ends of thegrate-frame from the ash-pit below, as shown in Fig. 5.

Having thus described my invention, I claim as new- ,5;

1. The fire-back consisting of the rear part and the two end parts, eachhaving the projections onits rear side, combined with a stovecasing, andwith air-passages which permit the passage of air from the end parts tothe rear part, substantially as described.

2. The rear partof the fire-back, provided with projections, asdescribed, and havingthe ends cut away, to permit of the passage of airfrom the end parts of the fire-back behind said rear part, substantiallyas described.

3. The rear part of the fire-back, provided with the projections on itsrear side, and having the downward extension passing through the openingin the grate, combined with said grate andthe return-flue underthe oven,substantially as described.

4. The rear part of the fire-back, provided with the projections, asdescribed, and having The exter-- the lower extension, around threesides of with openings for the admission of air behind which extends theinclosing-flange, substanthe end parts, and the flue beneath the oven,I0 tially as described. substantially as described.

5. The combination of therearand end parts of the fire-back, providedwith projections, as JOHN KILLIN' described, of the grate having theopening for Witnesses the reception of the lower extension of the rearJOHN S. KENNEDY,- part of the fireback, the casing constructed THUS.LEMON.

